Expression 3: 0 less than or equal to "y" less than or equal to 1.3 "x" left brace, 0 less than "x" less than 1.5 3 8 , right brace0≤y≤1.3x0<x<1.538
3
Expression 4: 2 greater than or equal to "y" greater than or equal to 1.3 "x" minus 2.5 left brace, 1.9 2 3 less than "x" less than 3.4 6 2 , right brace2≥y≥1.3x−2.51.923<x<3.462